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CASE STUDIES FOR UNIT 1, MODULE 3: GREEN ENGINEERING IN PRACTICE
CASE STUDY 1
THE MANUFACTURING AND THE TYPES OF TRINIDAD’S PORTLAND CEMENT
1.0 Introduction
Prior to 2007, Ordinary Portland Cement (OPC) was the most commonly used cement for general
purpose applications. It is commonly used for general construction especially when making different
types of concrete including Ordinary, Heavy Weight Concrete, High Strength Concrete, Pervious
Concrete, Shortcrete, Self-Compacting Concrete (SCC), Precast and Pre-stressed Concrete. In Trinidad
Portland Cement is manufacturing by Trinidad Cement Limited (TCL). The factory is located in Couva,
Central Trinidad and Tobago, shown in Figure 1.

Trinidad
Cement
Limited

Figure 1 - The Location of TCL

1.1 Types of the Portland cement produced by the TCL
Trinidad Cement Limited produces the following types of cement

1. Premium Plus Cement.
2. Ordinary Portland Cement.
3. Type II Cement.
4. Class G HSR Cement.
5. Sulphate Resistant Cement.
1.2 Specification and the standards of the cement produced by the TCL
The TCL cement is specified according to the following standards
EN 197-1: 2000 CEM I 42.5N
TTS 584:2002 OPC
ASTM C 150 TYPE I

CXC A36/U2/16 40